Finding the Fourth Proportional to 211,546.13, 291,942.30 and 122,122.13
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Solution
The fourth proportional to 211,546.13, 291,942.30 and 122,122.13 is: 168,533.52
Step by Step Solution
- Step 1: Write the proportion equation
211,546.13 : 291,942.30 = 122,122.13 : x - Step 2: Convert to fraction form
211,546.13/291,942.30 = 122,122.13/x - Step 3: Cross multiply
211,546.13x = 291,942.30 × 122,122.13 - Step 4: Simplify right side
211,546.13x = 35,652,614,053.39 - Step 5: Solve for x
x = 35,652,614,053.39/211,546.13 - Step 6: Final answer
x = 168,533.52
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.